Means for operating clutches.



ATBNTBD'APR. 21, 1908.

G. H. GILBERT. MEANS FR GPERATING GLUTGHES.

APPLICATIQN IILED JAN. 24. 1908.

W/TNESSES GILBERT H. GILBERT, OF NEW YORK, N. Y

fa. Subject of the King of Great Britain, and a l s residentof the city of New York, borough of Manhattan, inthe countyvand State of New Means for Oper-ating ,following is av full, clear, and exact descr1p' fio T all whom it may concern:l

MEANS For. OPERATING cLUTcHEs.

l Specification of Letters Patent.

Patented .epi'ii 21, ieee.

Application filed January `24, 1908. Serial No. 412,432.

. `Beit known that I, GiLBERT HL GILBERT,

York, ,have-invented a new and Improved Clutches, ot' which the tion. i

This invention relates to certain improvements in mechanisms for operatingr clutches onlai'ge and heavy machinery and .involves the 'use of a second clutch for applying the driving clutch.

.other i:lutch,y but in 'mcy o .iii4 "'-fqfsolely as/an extremely simple and eiii'cient 'means-of throwing the in Various constructions 4have b'eeiiulevised n'iWh-ich t-Wo or more clutches are employed, one of the clutches serving to operate the improved mechanes not perform any 'ism' the second clutch function, but 'serves merely and ain heavy driving clutchin'to or out of o eration. l'

'l #Reference `is to be had) to the accompanying drawings, forming a part of this specifica- 'ar .characters 'of reference ures, and in which y i Figure lis a longitudinal section through a. mechanism constructedl in. accordance with my invention; Fig. 2 is anend yiew thereof, and Fig. 3 is a plan oi a detail of construction. "In order to clearly illustrate the construction and-operation of my improved 'mechanism, I have illustrated' 'a common form of (Winding drum, modifiedt'o incorporate my improved mechanism for applying the clutch.' `The shaft'l() is mountedin any suitable forni ',Qf4 supportsvan'd has keyed thereto alarge driving gear 11, continuously rotated ,from

. the engine., Loosely mounted on the shaft is the Winding drum' 12, and a suitable clutch yis provided tor locking the driving gear to'l the drum, so that thelatter may be rotated.

-AS Shown, the Winding drum carries a clutch drum 13, encircled' by a friction band.l 14.

One end of the band-is secured to a pin 15 extending laterallyfrom the side ofthe gear Wheel, and the other end 0f the bandA is connected by a link 16 to an operatin r lever 17 pivoted intermediate its ends on thepin above referred to. The 'band- 11, l1nky 16,

and lever 17 are carried by the driving gear and continuoiisly'rotateadjacent the 'clutch drum 13. By rotating the, lever;17,.the

i band may-be tightened' to -grip the drinn and cause the rotation of with the driving goar.

,As a means for operating the lover-17 and 'tlirpwing the driving clutch into or out of .so constructed and mounted that it does not 1n any way constitute a driving.'cluteh7 but acts merely ,as a `clutch-ap )lying means. As shimnntliis second clut'cli comprises a clutch member -18 in the .forni of a cup and loosely. mounted'to rotate on the hub of the winding 4drum or the driving gear. The clutch member or cup .is connected by a link 19 to the end of the-operating lever 17. -The ber 20', which is in the form o'f a 'cone and is longitudinally movable to bring it into enconc may be moved in any suitable manner, as, for instance, by means of a collar 21, having a cani surface engaging with a portion of the bearing 22 forjthe shaft and having an operating handle or lever 23 for rotating the lcollar. A rotation ot the col-lar causes it to move longitudinally against a collar 24 con'- nected to the clutch oi rods'25.

lIn the operatioiiof my improved clutch.-v appl 'ing mea-ns, the collarl 21 is rotated by mea is of the lever 23 to fo'rce the clutch member 2() into engagement with the clutch `member 18. As the former is non-rotatably conpectedto the driving drum' 4and 'the latter is carried around by the driving gear, the

retardation or stopping-of the clutch niember 18.l T he continued. movement 'of the driving gear varies the position of the lever 17 in respect to the stationary clutch member 1.8 and causes said lever to .takea more nearly radial position. This ti htens the 4band onto the clutch drum 13 anc the Winding drum is causedto rotate with the driv- -ingearv 'l l.

d' have illustrated and described my iniproved mechanism in connection with a particular form of driving member vand apar ticul ar form of driven member having a band clutch. for connecting them, but it is evident that various other forms 'of clutches used'in other formsot driven members, maybe opthe winding drum 12 operation, 1 provide the n'iain feature of my invention, which comprises l a second" clutch ,f'

member by a plurality engagement oi' thc'two 4members causes the connecting other forms of'driving members to' winding drum carries the other clutch memgagement with the clutch member 18. The

ioo

iio'v -erated by the useV of such a secondary clutch' I having 'a clutch drum,

driven member and longitudinally vmovable v, driven member. and a link connecting'said i specific details of this secondv clutch may be '.ver.

as illustrated. It is also evident that the in respect thereto and a second clutch member unattached to said driving' member or driven member,- and a link connecting said last-mentioned clutch member 4and said le- 2. The combination of a driven member, a driving member, a clutch for connecting said members, a pivoted lever for applying said clutch, a. second clutch comprising two clutch members,v one of which is'carrled by said driven member and non-rotatable in respect thereto, and the other of which'isun- 1 attached to the driving member or the l unattached last-mentioned clutch member and said lever whereby when said lastmentioned clutch is thrown into operation, thelastmentioned clutch member is retarded and the first-mentio'nedv clutch thrown -into operation through theaction'of the link and lever.

3.. vIn comb1nationwith a' driving member., adriven member and a clutch member, including a drum and a band encircling the same for directly connecting said members, of a clutch-applying means, comprising an operating Vlever connected to said band,l and a second clutch, including a clutch member`- carriedby said' driven member and longitudinallyv movable said driven member but operatively connected to said lever. i

In testimony whereof I have signed my name to this Ispecification in the presence of two subscribing witnesses.v i

GILBERT il.' GILBERT Witnesses CLAIR W, FAIR'BANK, JOHN P. DAVIS.

but non-rotatable in respect thereto, and a second clutch member to either said driving memberor 

